Guideline 1.3 - Safety - Kids Category
You have selected the Kids category for your app, but it includes links out of the app or engages in commerce without first obtaining parental permission. Specifically, your app includes advertisements that, when tapped, take the user to a web page or the App Store.

Next Steps
To resolve this issue, please update your app to add a parental gate before the user can leave the app and ensure that the parental gate cannot be disabled

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I haven't checked "FOR KIDS" in the rating windows, but my app is anyway rated 4+. Maybe I could select "Unrestricted web access" to change app rating to 17+ and avoid parental gate?
Does anyone already deal with this problem?